Working with forms and dialogs

The goal for this iteration is to implement the functionality of the Filemenu options: Open, Save, and Save As.

We can implement these dialogs by using the standard Tkinter widgets. However, since these are so commonly used, a specific Tkinter module called filedialog has been included in the standard Tkinter distribution.

Here's an example of a typical filedialog:

Tkinter defines the following common use cases for filedialogs:

Functions	Description
askopenfile	This returns the opened file object
askopenfilename	This returns the filename string, not the opened file object
askopenfilenames	This returns a list of filenames
askopenfiles	This returns a list of open file objects or an empty list if Cancel is selected
asksaveasfile	This asks for a filename to save as and returns the opened file object
asksaveasfilename	This asks for a filename to save as and returns the filename
askdirectory	This asks for a directory and returns the directory name

 

The usage is simple. Import the filedialog...